> I would be very grateful if anyone tell me the way to accomplish this using VFP commands.


Here is an example of code I use to operate a cash drawer we use (Epson TM-U375)

*--- SET THE PRINTER
SET PRINTER TO NAME CR_RECEIPT_PRINTER

*---- open the drawer
??? chr(27)+ chr(112)+ chr(48)+ ','+ chr(52)+ chr(56)+ '.'+ chr(48)+ chr(56)+ chr(50)+ chr(52)


set printer to default


You will need to determine the escape sequences in the manual of the printer/cash drawer that you are using and modify accordingly